Code Development to Determine the Temperature from the OH* Chemiluminescence Recordings in a Supersonic Combusting Flow
Paper
Sopek, Tamara, Brieschenk, Stefan, Lorrain, Philippe, McIntyre, Timothy J. and Boyce, Russell R.. 2014. "Code Development to Determine the Temperature from the OH* Chemiluminescence Recordings in a Supersonic Combusting Flow." 45th AIAA Plasmadynamics and Lasers Conference (2014). Atlanta, United States 16 - 20 Jun 2014 United States. https://doi.org/10.2514/6.2014-2243
| Paper/Presentation Title | Code Development to Determine the Temperature from the OH* Chemiluminescence Recordings in a Supersonic Combusting Flow |
|---|---|
| Presentation Type | Paper |
| Authors | Sopek, Tamara (Author), Brieschenk, Stefan (Author), Lorrain, Philippe (Author), McIntyre, Timothy J. (Author) and Boyce, Russell R. (Author) |
| Journal or Proceedings Title | Proceedings of the 45th AIAA Plasmadynamics and Lasers Conference (2014) |
| Number of Pages | 11 |
| Year | 2014 |
| Place of Publication | United States |
| ISBN | 9781624102905 |
| Digital Object Identifier (DOI) | https://doi.org/10.2514/6.2014-2243 |
| Web Address (URL) of Paper | https://arc.aiaa.org/doi/abs/10.2514/6.2014-2243 |
| Conference/Event | 45th AIAA Plasmadynamics and Lasers Conference (2014) |
| Event Details | 45th AIAA Plasmadynamics and Lasers Conference (2014) Parent AIAA Plasmadynamics and Lasers Conference Event Date 16 to end of 20 Jun 2014 Event Location Atlanta, United States |
| Abstract | Experimental investigations of scramjet combustion are the focus of experimental studies performed in T4 facility at The University of Queensland. The objective of the present study is to develop code support to determine OH temperatures in such high speed flows. For this purpose available source codes, namely SPARTAN and Photaura, had to be extended in order to include OH species in their databases. Validation of the OH modelling in SPARTAN and Photaura was done by comparison with the results of LIFBASE simulations. The results of these codes were compared with the OH* chemiluminescence spectra obtained using a Mach 9 enthalpy-equivalent flight condition. A two-dimensional scramjet model with a constant-area supersonic combustor was used in the experimental investigation. The OH* chemiluminescence signal was recorded and the spectrally resolved measurements of the OH* emission spectra have been conducted in order to characterise the ignition and combustion processes. When compared with the spectrally resolved OH* emission spectra, the results of spectral simulations demonstrate a very good agreement. The comparison with the experimental data indicate that results of three synthetic spectral simulation can be considered as a consistent representation of the physical phenomena and can serve as a pre-experiment indication of the combustion process studied. The presented results show the possibility of using OH* chemiluminescence spectra to infer relative temperatures in supersonic combustion. Absolute temperatures can be inferred if the offset between the intensity-versus-temperature functions for OH* and OH is known. |
| Keywords | Combustion pro-cess; Experimental investigations; Relative temperatures; Spectral simulations; Supersonic combustion; Supersonic combustors; Temperature function; University of Queensland |
| ANZSRC Field of Research 2020 | 400106. Hypersonic propulsion and hypersonic aerothermodynamics |
| 401205. Experimental methods in fluid flow, heat and mass transfer | |
| 510203. Nonlinear optics and spectroscopy | |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | University of Queensland |
| University of New South Wales | |
| Institution of Origin | University of Southern Queensland |
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